Quantity of Water Needed.-the quantity of water needed by man and animals must therefore be very carefully calculated. Repeated experiments upon a very extended scale in England have shown that a healthy man requires daily as drink from 2 to 4 pints of water, this amount being in addition to that which is swallowed as [...]

Breathing.–Respiration, or the act of breathing, consists of thealternate inspiration and expiration of air to and from the lungs; in the process of which the lungs themselves are almost passive managements, since their contraction expansion takes place by means of the muscles which surround the chest. The diaphragm or midriff, which, when at rest in [...]